Combined global positioning system antenna and preamplifier



FIG. 1 is a top, front and left side perspective view of a combined global positioning system antenna and preamplifier showing my new design;

FIG. 2 is a front elevational view thereof, and a mirror image of a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof, and a mirror image of a right elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a combined global positioning system antenna and preamplifier, as shown and described. 